I like the fine old names like Military and Police, with the year model and change number given for precise identification. The term "pre-model 10" just kind of sets my teeth on edge.
I got lectured on the S&W board. It seems that in some collecting circles, "pre-model 10" specifically means a post-WWII short action Military & Police made before they started stamping model numbers in 1957 but mechanically identical to one with model number. They do not use the pre-model xx term for older guns like this one.